MegaCam
Image taken from http://www-dapnia.cea.fr/Phys/Sap/Activites/Projets/Megacam/PictureCamera.html
This pictures shows the MegaCam camera before its installation at CFHT. At CFHT, other instruments work with the camera - a cryocooler to keep the CCD chips cool, a mechanical system to load the filters and open and close the shutter, a juke-box of eight interchangeable filters, a computer to control all the components and another computer to collect the data.